Bath tub



FIG. 1 is a perspective view of the bath tub;

FIG. 2 is a front view of the bath tub of FIG. 1;

FIG. 3 is a top view of the bath tub of FIG. 1;

FIG. 4 is a rear view of the bath tub of FIG. 1;

FIG. 5 is a right elevation view of the bath tub of FIG. 1; and,

FIG. 6 is a left elevation view of the bath tub of FIG. 1.

The ornamental design for a bath tub, as shown.